[PATCH 6/8] drm/ttm: test for dma_address array allocation failure

[Konrad Rzeszutek Wilk]

On Wed, Nov 02, 2011 at 07:37:53PM -0400, j.glisse at gmail.com wrote:
> From: Jerome Glisse <jglisse at redhat.com>
> 
> Signed-off-by: Jerome Glisse <jglisse at redhat.com>

Reviewed-by-me.
> ---
>  drivers/gpu/drm/ttm/ttm_tt.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
> index 2dd45ca..58ea7dc 100644
> --- a/drivers/gpu/drm/ttm/ttm_tt.c
> +++ b/drivers/gpu/drm/ttm/ttm_tt.c
> @@ -298,7 +298,7 @@ struct ttm_tt *ttm_tt_create(struct ttm_bo_device *bdev, unsigned long size,
>  	ttm->dummy_read_page = dummy_read_page;
>  
>  	ttm_tt_alloc_page_directory(ttm);
> -	if (!ttm->pages) {
> +	if (!ttm->pages || !ttm->dma_address) {
>  		ttm_tt_destroy(ttm);
>  		printk(KERN_ERR TTM_PFX "Failed allocating page table\n");
>  		return NULL;
> -- 
> 1.7.1